发明名称 Umbrella reversal prevention structure
摘要 An umbrella reversal prevention structure including a plurality of flexible guys having outer ends connected one each to different ones of the resilient ribs of the umbrella. The inner ends of the guys are connected to the shaft of the umbrella adjacent its outer end. The guys are provided with adjusting structure for adjusting the length thereof to provide a preselected tension in each guy for effectively preventing undesirable displacement of the resilient rib outer ends outwardly from the normal disposition thereof in the open bowed configuration of the umbrella, thereby to prevent reversal of the umbrella structure as from a high wind force directed outwardly thereagainst.
申请公布号 US4407317(A) 申请公布日期 1983.10.04
申请号 US19810244158 申请日期 1981.03.16
申请人 CRANDALL, MELVIN 发明人 CRANDALL, MELVIN
分类号 A45B25/22;(IPC1-7):A45B25/22 主分类号 A45B25/22
代理机构 代理人
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